in the presence of a glycosyl-acceptor-derived borinic ester. Reactions proceeded smoothly under mild conditions to provide the corresponding β-mannosides with high stereoselectivity in moderate to high yields. In addition, the present glycosylation method was applied successfully to the total synthesis of acremomannolipin A.
在糖基受体衍生的
硼酸酯存在下,使用1,2-脱
水甘露糖供体和单醇受体进行β-立体选择性
甘露糖基化。反应在温和条件下平稳进行,以中等至高产率提供具有高立体选择性的相应β-
甘露糖苷。此外,本糖基化方法已成功地应用于阿莫莫尼脂A的全合成。